<?php

function autoLoad($currPath) {
    if (is_dir($currPath)) {
        $handler = opendir ($currPath);
        while (($filename = readdir( $handler )) !== false) {
            if ($filename != "." && $filename != ".." && $filename[0] != '.') {     
                if(is_file($currPath . '/' . $filename)) {      
                    require_once $currPath . '/' . $filename;
                }
                if(is_dir($currPath . '/' . $filename)) {       
                    autoLoad($currPath . '/' . $filename);
                }
            }
        }
        closedir($handler);
    }
}

function RemoveXSS($val) {
   // remove all non-printable characters. CR(0a) and LF(0b) and TAB(9) are allowed
   // this prevents some character re-spacing such as <java\0script>
   // note that you have to handle splits with \n, \r, and \t later since they *are* allowed in some inputs
   $val = preg_replace('/([\x00-\x08,\x0b-\x0c,\x0e-\x19])/', '', $val);
   // straight replacements, the user should never need these since they're normal characters
   // this prevents like <IMG SRC=@avascript:alert('XSS')>
   $search = 'abcdefghijklmnopqrstuvwxyz';
   $search .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
   $search .= '1234567890!@#$%^&*()';
   $search .= '~`";:?+/={}[]-_|\'\\';
   for ($i = 0; $i < strlen($search); $i++) {
      // ;? matches the ;, which is optional
      // 0{0,7} matches any padded zeros, which are optional and go up to 8 chars
      // @ @ search for the hex values
      $val = preg_replace('/(&#[xX]0{0,8}'.dechex(ord($search[$i])).';?)/i', $search[$i], $val); // with a ;
      // @ @ 0{0,7} matches '0' zero to seven times
      $val = preg_replace('/(�{0,8}'.ord($search[$i]).';?)/', $search[$i], $val); // with a ;
   }
   // now the only remaining whitespace attacks are \t, \n, and \r
   $ra1 = array('javascript', 'vbscript', 'expression', 'applet', 'meta', 'xml', 'blink', 'link', 'style', 'script', 'embed', 'object', 'iframe', 'frame', 'frameset', 'ilayer', 'layer', 'bgsound', 'title', 'base');
   $ra2 = array('onabort', 'onactivate', 'onafterprint', 'onafterupdate', 'onbeforeactivate', 'onbeforecopy', 'onbeforecut', 'onbeforedeactivate', 'onbeforeeditfocus', 'onbeforepaste', 'onbeforeprint', 'onbeforeunload', 'onbeforeupdate', 'onblur', 'onbounce', 'oncellchange', 'onchange', 'onclick', 'oncontextmenu', 'oncontrolselect', 'oncopy', 'oncut', 'ondataavailable', 'ondatasetchanged', 'ondatasetcomplete', 'ondblclick', 'ondeactivate', 'ondrag', 'ondragend', 'ondragenter', 'ondragleave', 'ondragover', 'ondragstart', 'ondrop', 'onerror', 'onerrorupdate', 'onfilterchange', 'onfinish', 'onfocus', 'onfocusin', 'onfocusout', 'onhelp', 'onkeydown', 'onkeypress', 'onkeyup', 'onlayoutcomplete', 'onload', 'onlosecapture', 'onmousedown', 'onmouseenter', 'onmouseleave', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'onmousewheel', 'onmove', 'onmoveend', 'onmovestart', 'onpaste', 'onpropertychange', 'onreadystatechange', 'onreset', 'onresize', 'onresizeend', 'onresizestart', 'onrowenter', 'onrowexit', 'onrowsdelete', 'onrowsinserted', 'onscroll', 'onselect', 'onselectionchange', 'onselectstart', 'onstart', 'onstop', 'onsubmit', 'onunload');
   $ra = array_merge($ra1, $ra2);
   $found = true; // keep replacing as long as the previous round replaced something
   while ($found == true) {
      $val_before = $val;
      for ($i = 0; $i < sizeof($ra); $i++) {
         $pattern = '/';
         for ($j = 0; $j < strlen($ra[$i]); $j++) {
            if ($j > 0) {
               $pattern .= '(';
               $pattern .= '(&#[xX]0{0,8}([9ab]);)';
               $pattern .= '|';
               $pattern .= '|(�{0,8}([9|10|13]);)';
               $pattern .= ')*';
            }
            $pattern .= $ra[$i][$j];
         }
         $pattern .= '/i';
         $replacement = substr($ra[$i], 0, 2).'<x>'.substr($ra[$i], 2); // add in <> to nerf the tag
         $val = preg_replace($pattern, $replacement, $val); // filter out the hex tags
         if ($val_before == $val) {
            // no replacements were made, so exit the loop
            $found = false;
         }
      }
   }
   return $val;
 }
 
 function logg($filename, $data){
    $dirname = dirname(dirname(__FILE__)).'/log/';
    $_file = $dirname.$filename.date('Y-m-d');
    file_put_contents($_file, $data, FILE_APPEND);
 }
 
 function getClientIp(){
    $user_IP = ($_SERVER["HTTP_VIA"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : $_SERVER["REMOTE_ADDR"];
    $user_IP = ($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"];
    return $user_IP;
 }


function filter_utf8_char($ostr){
    preg_match_all('/[\x{FF00}-\x{FFEF}\x{0000}-\x{00ff}\x{4e00}-\x{9fff}]+/u', $ostr, $matches);

    $str = join('', $matches[0]);

    if($str==''){   //含有特殊字符需要逐個處理

        $returnstr = '';

        $i = 0;

        $str_length = strlen($ostr);

        while ($i<=$str_length){

            $temp_str = substr($ostr, $i, 1);

            $ascnum = Ord($temp_str);

            if ($ascnum>=224){

                $returnstr = $returnstr.substr($ostr, $i, 3);

                $i = $i + 3;

            }elseif ($ascnum>=192){

                $returnstr = $returnstr.substr($ostr, $i, 2);

                $i = $i + 2;

            }elseif ($ascnum>=65 && $ascnum<=90){

                $returnstr = $returnstr.substr($ostr, $i, 1);

                $i = $i + 1;

            }elseif ($ascnum>=128 && $ascnum<=191){ // 特殊字符

                $i = $i + 1;

            }else{

                $returnstr = $returnstr.substr($ostr, $i, 1);

                $i = $i + 1;

            }

        }

        $str = $returnstr;

        preg_match_all('/[\x{FF00}-\x{FFEF}\x{4e00}-\x{9fff}]+/u', $str, $matches);

        $str = join('', $matches[0]);

    }

    return $str;

}
date_default_timezone_set('Asia/Shanghai');
autoLoad(dirname(__FILE__));
?>